In human beings, the statistical probability of getting either a male or female child is 50:50. Give a suitable explanation.​

There is 50 chance because there are two chromosomes that are same and two which are difeerent . XX MEANs girl XY means boys .

➜ The sex of an infant is determined by the type of sex chromosome contributed by the male gamete. Since the ratio of male gametes containing X chromosome and those containing Y chromosome is 50:50, the statistical probability of male or a female infant is also 50:50.

the backbone of the dna and rna compound is sugar phosphate.